MATLAB Programming Fundamentals - MathWorks

ans=5×6 table

Gender Smoker Height Weight ID BMI

________ ______ ______ ______ ____ ______

Smith 'Male' true 71 176 8148 24.547

Johnson 'Male' false 69 163 9058 24.071

Williams 'Female' false 64 131 1270 22.486

Jones 'Female' false 67 133 9134 20.831

Brown 'Female' false 64 119 6324 20.426

Populate the variable units and variable descriptions properties for BMI. You can add

metadata to any table variable to describe further the data contained in the variable.

T.Properties.VariableUnits{'BMI'} = 'kg/m^2';

T.Properties.VariableDescriptions{'BMI'} = 'Body Mass Index';

Create a histogram to explore whether there is a relationship between smoking and body-

mass-index in this group of patients. You can index into BMI with the logical values from

the Smoker table variable, because each row contains BMI and Smoker values for the

same patient.

tf = (T.Smoker == false);

h1 = histogram(T.BMI(tf),'BinMethod','integers');

hold on

tf = (T.Smoker == true);

h2 = histogram(T.BMI(tf),'BinMethod','integers');

xlabel('BMI (kg/m^2)');

ylabel('Number of Patients');

legend('Nonsmokers','Smokers');

title('BMI Distributions for Smokers and Nonsmokers');

hold off

9 Tables